padding

CSS, nested divs & margins vs. padding

眉间皱痕 提交于 2019-12-01 05:41:58
问题 i totally understand the box model. this question is more about trying to pin down a semantic methodology regarding when to use margins and when to use padding. here is a typical example, first, in plain English: situation: we have a container div, inside of which there is a paragraph element. goal: to have a 12px space between the inside of the div and the outside of the paragraph. option a) apply 12px of padding to the container div option b) apply 12px margins to the paragraph element or,

CSS基础

浪尽此生 提交于 2019-12-01 05:27:41
一  CSS显示模式    1,标签级别   CSS将HTML标签做了分类:文本级,容器级。   文本级标签只能嵌套文字,图片等信息。常用的文本级标签包含:span,p,em,img等。   容器级标签可以嵌套其他所有标签。常用的包含:div,ul,ol,table等所有结构化语义标签都是容器级,比如header,footer,nav,section等。       2,元素分类   CSS将所有HTML元素分为三大类:块级元素,行类元素,行内块级元素。   块级元素:独占一行;如果没有设置宽度,将继承父元素的宽度;如果设置了宽高,将按照设置值显示。   行内元素:在一行内共存。不能设置宽高(margin和padding依然可以使用)。默认按内容大小显示。   行内块级:不会独占一行,但可以设置宽高。   CSS对元素的这种分类,我们称之为显示模式。       3,显示模式转换   CSS使用display属性设置元素的显示模式。display属性有3个值:inline(行内),block(块级),inline-block(行内块级)。 二  CSS选择器       1,常用选择器   a),通配符     CSS使用(*)星号表示通配符选择器,选中所所有标签。 1 *{font-size:14px;}   b),特别重要     CSS可以在属性值后添加

Embedded padding/margin in fonts

泪湿孤枕 提交于 2019-12-01 03:04:22
It seems that all fonts have some sort of embedded padding or margin. By setting: margin: 0px; padding: 0px; You never get what you want. Does anybody know why this is? It sounds like the issue you are having is not with the CSS but the font itself. Most fonts define a baseline, x-height and line-height out-of-the-box. Your specific issue is likely with the font's leading , the space between lines. Sometimes these values can be wildly inconsistent. If you are really trying to get a specific font to line up correctly, I would recommend taking a look at FontLab and editing the glyphs/baseline

Is there any way to control the padding between struct members (incl. bit field) in C++?

谁说我不能喝 提交于 2019-12-01 02:59:30
I'm working on parsing network data stream, I'm wondering if there is any way I can map the data stream directly to the data structure. For example, I want to define the data structure for an RTP protocol as follows. class RTPHeader { int version:2; // The first two bits is version. int P:1; // The next bits is an field P. int X:1; int CC:4; int M:1; int PT:7; int sequenceNumber; int64 timestamp; ..... }; And using it this way. RTPHeader header; memcpy(&header, steamData, sizeof(header)); But as the C++ compiler will insert padding between the members, is there any way to control that so that

margin的深入理解

妖精的绣舞 提交于 2019-12-01 02:45:53
第一部分:margin--基础知识 要介绍margin的基础知识,我们不可回避地要谈到css盒子模型(Box Model),一般而言,css盒子模型是用来设计和布局的。它本质上是一个盒子,包括:外边距(margin)、边框(border)、内边距(padding)以及最中间的内容(content)。下图即为盒子模型(这里只谈W3C规范的标准盒模型,而不谈IE5和IE6在怪异模式中使用的非标准的盒子模型): 我们要介绍的margin在最外层,因为margin(外边距)一定是透明的,所以它可以用来使得不同的盒子之间留有一定的间隙从而达到布局美观等效果。从上面的盒子模型中我们可以看到,margin在四周均存在,我们可以使用margin-top、margin-right、margin-bottom、margin-left分别设置这四个方向的margin值。(注:由于这部分知识较为基础,所以我不再在这部分不做更多介绍) 第二部分:margin--在同级元素(非父子关系)之间应用 这一部分主要介绍水平方向和竖直方向的外边距的合并问题。  (1)水平方向的外边距合并 两个水平方向的盒子相遇,那么最终两者之间的距离为左边盒子的右外边距和右边盒子的做外边距之和。 <!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8"> <title

博客园美化

你。 提交于 2019-12-01 02:39:19
博客皮肤 jeolee 页面定制CSS #ad_t2, #ad_under_post_holder, #blog_news_kb, #comment_nav, #google_ad_c2, #site_nav_under, #under_post_kb, #under_post_news, blog_news_kb, google_ad_c2 { display: none!important; } /* 定制博客背景图片,url里面是你的图片位置信息 */ body { opacity: 0.95; background-color: #efefef; background-image:url(https://images.cnblogs.com/cnblogs_com/kexve/1561758/o_2233.png); background-repeat: no-repeat; background-attachment: fixed; background-position: center 0; background-size: cover; padding-top:0px; } /*文章内容详情页面的标h2、h3的样式*/ #cnblogs_post_body h2 { background: #2B6695; border-radius: 6px 6px 6px 6px

Winforms, creating padding when using Dock properties

一曲冷凌霜 提交于 2019-12-01 02:38:42
How do I add padding, or some space between the textboxes when using dockstyle.top property? for(int i =0; i< 10; i++) { textboxes[i] = new TextBox(); textboxes[i].Dock = DockStyle.Top; mypanel.Controls.Add(textboxes[i]); } The code above puts textboxes right beneath each other. Can't figure this out without using mass panels or fixed positioning. How to do the following? 1) I would like to add around 10-20pixels between boxes. 2) How to change size (height,width) of the textboxes, since when using dockstyle.top it ignores the size commands ? With DockStype.Top you can't change the width of

keras conv2D参数

ⅰ亾dé卋堺 提交于 2019-12-01 01:52:33
keras.layers.Conv2D(filters, kernel_size, strides=( 1, 1), padding= 'valid', data_format= None, dilation_rate=( 1, 1), activation= None, use_bias= True, kernel_initializer= 'glorot_uniform', bias_initializer= 'zeros', kernel_regularizer= None, bias_regularizer= None, activity_regularizer= None, kernel_constraint= None, bias_constraint= None) 该层创建了一个卷积核, 该卷积核对层输入进行卷积, 以生成输出张量。 如果 use_bias 为 True, 则会创建一个偏置向量并将其添加到输出中。 最后,如果 activation 不是 None ,它也会应用于输出。 filters : 整数,输出空间的维度 (即卷积中滤波器的数量)。 kernel_size : 一个整数,或者 2 个整数表示的元组或列表, 指明 2D 卷积窗口的宽度和高度。 可以是一个整数,为所有空间维度指定相同的值。 strides : 一个整数,或者 2 个整数表示的元组或列表

Is there any way to control the padding between struct members (incl. bit field) in C++?

余生颓废 提交于 2019-11-30 22:59:30
问题 I'm working on parsing network data stream, I'm wondering if there is any way I can map the data stream directly to the data structure. For example, I want to define the data structure for an RTP protocol as follows. class RTPHeader { int version:2; // The first two bits is version. int P:1; // The next bits is an field P. int X:1; int CC:4; int M:1; int PT:7; int sequenceNumber; int64 timestamp; ..... }; And using it this way. RTPHeader header; memcpy(&header, steamData, sizeof(header)); But

Embedded padding/margin in fonts

匆匆过客 提交于 2019-11-30 22:16:50
问题 It seems that all fonts have some sort of embedded padding or margin. By setting: margin: 0px; padding: 0px; You never get what you want. Does anybody know why this is? 回答1: It sounds like the issue you are having is not with the CSS but the font itself. Most fonts define a baseline, x-height and line-height out-of-the-box. Your specific issue is likely with the font's leading, the space between lines. Sometimes these values can be wildly inconsistent. If you are really trying to get a